A110180 as a triangular array
| | | | | | | | | | | 1 |
| | | | | | | | | | | 1 | | 1 |
| | | | | | | | | | 1 | | 1 | | 1 |
| | | | | | | | | 1 | | 3 | | 1 | | 1 |
| | | | | | | | 1 | | 7 | | 5 | | 1 | | 1 |
| | | | | | | 1 | | 19 | | 13 | | 7 | | 1 | | 1 |
| | | | | | 1 | | 51 | | 49 | | 19 | | 9 | | 1 | | 1 |
| | | | | 1 | | 141 | | 161 | | 91 | | 25 | | 11 | | 1 | | 1 |
| | | | 1 | | 393 | | 581 | | 331 | | 145 | | 31 | | 13 | | 1 | | 1 |
| | | 1 | | 1107 | | 2045 | | 1441 | | 561 | | 211 | | 37 | | 15 | | 1 | | 1 |
| | 1 | | 3139 | | 7393 | | 5797 | | 2841 | | 851 | | 289 | | 43 | | 17 | | 1 | | 1 |
|
A110180 as a square array
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 1 | 3 | 7 | 19 | 51 | 141 | 393 | 1107 | 3139
| | 1 | 1 | 5 | 13 | 49 | 161 | 581 | 2045 | 7393
| | 1 | 1 | 7 | 19 | 91 | 331 | 1441 | 5797
| | 1 | 1 | 9 | 25 | 145 | 561 | 2841
| | 1 | 1 | 11 | 31 | 211 | 851
| | 1 | 1 | 13 | 37 | 289
| | 1 | 1 | 15 | 43
| | 1 | 1 | 17
| | 1 | 1
| | 1
|
A110180 as an upper right triangle
| 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1
| | 1 | 1 | 3 | 7 | 19 | 51 | 141 | 393 | 1107 | 3139
| | | 1 | 1 | 5 | 13 | 49 | 161 | 581 | 2045 | 7393
| | | | 1 | 1 | 7 | 19 | 91 | 331 | 1441 | 5797
| | | | | 1 | 1 | 9 | 25 | 145 | 561 | 2841
| | | | | | 1 | 1 | 11 | 31 | 211 | 851
| | | | | | | 1 | 1 | 13 | 37 | 289
| | | | | | | | 1 | 1 | 15 | 43
| | | | | | | | | 1 | 1 | 17
| | | | | | | | | | 1 | 1
| | | | | | | | | | | 1
|
|
